6
DRAWMER
1968 O
PERATOR’S
M
ANUA
L
CONTROL DESCRIPTION
Threshold:
Determines the input level above which gain reduction will be applied and may be
set in the range -30dB to infinity. Because the compression system is based on
the Soft Knee principle, the onset of compression is progressive, so no Ratio
control is necessary.
Big:
Makes the compressor side chain less sensitive to low bass frequencies, so
reducing the ducking effect caused by bass energy and effectively boosting the
bass output.
Attack:
Six switchable Attack settings are provided giving various settings. The actual
attack time is further modified by the release setting chosen
Attack Times:
1
2 ms
2
8 msec
3
15 msec
4
25 msec
5
30 msec
6
50 msec
Release:
There are three
fixed
Release times and a further three which are
programme
dependent
. Switch settings 1 through to 3 provide progressively increasing
release times, while positions 4, 5 and 6 cause the release times to vary in a
manner which automatically adapts to the dynamics of the incoming signal, as
detailed below.
Release Times
1
100 ms
(Fixed)
2
500 msec
(Fixed)
3
1 sec
(Fixed)
4
Semi-Auto 200 ms to 2 sec Signal dependent
5
Semi-Auto 500 ms to 5 sec signal dependent
6
Automatic 1 sec to 10 sec signal dependent
CHAPTER 2
